This is a fixing chest trap for using with telesin neck mount necklace holder only. It's not a chest mount for mounting with camera directly.
Can be used with all telesin neck lanyard like B09X33WBRD, B0C2TSBGD7, B0C2TVZDTP, B0BRM6TNRR, B0BN3NLRQ2.
To ensure security and stability of the neck lanyard while doing vigorous outdoor exercise like skiing, surfing, snowboarding, cycling, clamping, runing, hiking, biking, motorcycling.