Made of stainless steel. Clamps for use with Ball & Socket joints. All sizes have screw locking devices except sizes Part 12WOS and 18WOS.
Lab Supplies Caps & Closures Cap Size - 20128WS - B&s Clamp Size 28 With Screw
100% Satisfaction Guarantee: At Mansion Labs, we want to be sure that the item you choose is the right one for you. Within 30 days of delivery of your order, you may return any merchandise purchased from Mansion Labs in its original condition with your email order confirmation or packing slip. Restocking fees may apply. On items over $275 shipping within the US, we will even arrange free pick up or pay for returns shipping.