Product Name No Weight Flexible Connectors (Two-ball Type)/ Standard Type TKQ-51T 10KG/§², 20KG/§² Flexible Connectors (Two-ball Type)/ Control Rod Type TKQ-51TC 10KG/§², 20KG/§² Flexible Connectors (One-ball Type)/Standard Type TKQ-520 10KG/§², 20KG/§² Flexible Connectors (One-ball Type)/Control Rod Type TKQ-520C 10KG/§², 20KG/§² Rubber Expansion Joints (One-ball Type) / Standard Type TKQ-530E 10KG/§², 20KG/§² Rubber Expansion Joints (One-ball Type) / Control Rod Type TKQ-530EC 10KG/§², 20KG/§² Control Rods TKQ-C 10KG/§²