Transforming Technologies Tranforming Technologies WB5200L, Dual Conductor Black Speidel Metal Wrist Strap With 20' Coil Cord, Large, Pack of 10Tranforming Technologies WB5200L, Dual Conductor Black Speidel Metal Wrist Strap With 20' Coil Cord, Large, Pack of 10 The adjustable WB5050L Dual Wire Wrist Strap sets provides redundancy by including two connections to ground so even if one dual wire wrist strap conductor is severed, the operator has reliable path to ground with other wire. Designed for use with a Dual Conductor Constant Workstation Monitor to maximize ESD protection.