1. Installed near the bottom of the crank frame, it can provide safety protection for the bottom of the bicycle 2. The installation is very simple. It can be stuck on quickly and it is easy to remove without leaving any glue residue 3. Suitable for mountain bikes/slow-speed bikes 4. Material: silicone 5. Weight: E815-A: about 46g; E815-B: about 40.5g; E815-C: about 38g; E815-D: about 15g; E815-E: about 16g
