The wall flange is made of 201 stainless steel with mirror polished finish, durable, rust-proof and corrosion-resistant.There is self-adhesive tape on the back of the product, which can be directly attached to the wall without additional tools.When the pipe passes through the wall, it leaves a gap. It can be decorated with an escutcheon plate.Can be used to cover the gaps around heating pipes, water pipes, gas pipes, angle valves, faucets, radiators, drain pipes, etc. Specification:Material: 201 Stainless SteelFinish: Mirror PolishedFit Pipe Diameter: 23mm / 0.91"Total Size: 65 x 23 x 5mm / 2.56" x 0.91" x 0.2"(Outer.D*Inner.D*T)Package Content: 3pcs x Wall Split Flange