Connect this clamp to any support rod to set up three separate pendulum demonstrations. Includes individual cord clamps. Additional Info: Connect this clamp to any support rod to set up three separate pendulum demonstrations. Includes individual cord clamps. Package Size(L x W x H): 12 X 2 X 1.5 (IN) Categories: Waves, Tuning Forks HTS Code: 8205.70.0090 UNSPSC: 4.11224e+007 Country Of Origin: INDIA