JaysAndKays Strap Adapters for Casio GShock 16mm Spring Bar Models incl 5600, 6600, GA100, 9400 More! Black For adapting 24mm 1-piece straps to your GShock. Better fitting solution than Casio OEM adapters on many models. Made of durable resin for long term performance in all conditions. See product description for information on compatible models. Color: Black