The hardware used in the bathroom mainly includes towel racks, towel racks, towel rings, paper towel racks, storage racks, soap boxes, etc. Due to the frequent use of family bathrooms, hardware must be able to withstand various "severe tests" such as high temperature and high humidity. 
At present, the bathroom hardware on the market is mainly pure copper, copper-zinc alloy, stainless steel and alumina. Among them, most of the hardware parts of pure copper and copper-zinc alloy are chrome-plated on the surface, while the hardware parts of stainless steel and alumina are of the original material. From the perspective of corrosion resistance, chrome-plated pure copper and copper-zinc alloy hardware are the most durable, and the surface is bright and eye-catching, which is high-grade, but the price is also the most expensive; stainless steel hardware is more affordable, and the surface of aluminum oxide hardware is Matte color, outstanding texture, good corrosion resistance, moderate price. When purchasing, the materials of stainless steel and alumina are easy to distinguish. For chrome-plated pure copper and copper-zinc alloy hardware, pay attention to the coating process. The more the coating, the more stable the quality.
Towel rack materials, common towel rack manufacturing materials are mainly stainless steel, aluminum alloy, copper, plastic, etc. There are also DIY wooden towel racks.
Types of towel racks as below:
Punch-free towel rack: Use 3M glue or suction cups to fix the towel rack on the wall. It will not damage the walls of the bathroom, it is easy to disassemble, and the installation position can be changed at any time.
Perforated Towel Rack: Installs securely, but will damage the wall.
Single pole towel rack: suitable for single apartment use
Double-bar towel rack: The double-bar towel rack saves space. The layout is that one more towel can be hung on the front and rear layers or the upper and lower layers, which improves the space utilization rate. Towels with different functions, such as face towel and foot towel, can be placed separately in the front and back or up and down positions according to personal habits, which is more suitable for families with multiple family members.
Creative shape towel rack: cartoon pattern or character shape, the pattern is outstanding except for the basic towel hanging function, but its selling point.
Multi-bar towel rack: Hang more towels, but pay attention to staggered separation. The towel is not easy to dry, and it is easy to breed bacteria.

We are mainly talking here is the punch-free towel rack.
The punch-free towel rack is very popular in recent years, the main reason is that the punch-free towel rack will not damage the wall. The punch-free towel rack adopts a nail-free, glue-free, tool-free installation product that can be used repeatedly. Beautiful and practical, reliable quality. It is more suitable for use on surfaces such as ceramic tiles, glass, granite, wooden doors, etc. that are smooth and free of roads and no obstruction marks.
Disadvantages are also obvious. Because the bathroom is relatively humid and the water vapor is relatively large, the glue will easily lose its viscosity under the erosion of water vapor, which means that the perforated towel rack has a high risk of falling, and the firmness is not as good as that of the towel rack.

How to install the punch-free towel rack?
1. Choose a clean and smooth surface, such as tile walls, glass, etc., the smoother the firmer it is.
2. Clean the plane where the hole-free hook needs to be installed, and clean the oil on it. Only a clean and smooth wall can make the hole-free adsorption more firm.

Precautions for no punching
1. It needs to be installed according to the requirements, and hang the object according to the weight of the normal hanging object, do not exceed the maximum load
2. Do not install it near the fire, or on uneven walls

What should I do if the hole-free hook can't suck?
1. You can use a cotton swab to evenly apply the egg white liquid to the non-punching hole, then stick it on the tile or glass, and hang it on the object after it is completely dry.
2. Apply some soapy water on the back of the free punch, and then stick it on the wall to make it more firm
3. Reinforcement without punching can also apply a little skin care oil on the back of the punch-free, stick it to the wall and leave it for a day for use
4. Put the plastic free punch in hot water for 10 seconds and take it out, it can also play the role of strengthening the hook

5. There is a simpler method, drop some water in the free punch, and quickly stick the free punch to the plane