We have three types of spring clamps in the QVS store, 2.5"s 3.5"s Plastic and 6" Metal. The 2 ½ inch Clips are most commonly used by market stall traders to hang up price ticket and small samples of stock. They are also great for hobby and craft projects, household uses and for fine woodworking. The maximum opening capacity is 30mm (1.25"). We also supply large 3.5" clamps, maximum opening capacity for these is 38mm (1.5"). They hold the same basic properties as the smaller , but the larger size means that they are useful for larger, heavier items. The swivelling jaw pads help them attach to varying and uneven surfaces when navigating tricky situations. The plastic spring loaded re-usable clip ensures a tight grip and long lasting durability allowing you to use it again and again without a reduction in performance.