1/4" lace is recommended for large breed dogs (100+ lbs). It also makes a nice obedience or every day walking lead.  Because of the width of the lace we do not recommend a loop lead. We recommend either a snap or we can braid it right onto the collar of your choice. Choice of snap is either a standard 1/2" snap (nickel-plated zinc or bronze plated), or a nickel-plated zinc safety snap.