Grooved snubber, and post design assures center break of flexible wire up to 1/16 diameter. May also be used for testing cord, rubber or filaments. 1 diameter aluminum snubber is mounted on  swiveling plate so that specimen will align with force when load is applied.  Ball socket mounting screw in upper grip assures proper alignment with lower grip. Capacity: 200 lb; Upper grip weight: 5 oz; Combined grip length: 8-3/4