Packing: 2pcs
Material: steel
Size: 21.7mm(0.85in) x 21.5mm(0.84in)
Sturdy, rust-proof, corrosion-resistant, durable and long-lasting
Suitable for cranking system with ISIS inner bearing with M15 thread, bike crank screws with screw lock (screw adhesive), prevents vibration loosening, prevents unwanted screws from loosening, and provides corrosion protection
Compatible with Bosch GEN4,brose STANDARD/MAG,Yamaha PW-X3/X2,Panasonic GX0,Bafang M620,Ananda M230,Olli M03/M02,VINKA E30/S20,M0TINOVA MIGIC T1,MIVICE X700,Cranking System with ISIS