This chalk holder will stay where you put it. Strong thumb clip gives the Chalk Klip the extra gripping power to stay where you put it. The edges of the Chalk Klip are smooth so they will not cut or damage clothing. There is a tip scuffer built into the front side. Quick and easy one - hand operation. Clip to belt loops, pockets, waste bands, wrist bands, watch bands, any place where a normal chalk holder can go.