Table clamp can turn any hand-held magnifier into a "hands-free" magnifier, or can be used to position smaller objects for easier viewing. Special Features: Flexible metal, gooseneck arm with 2 clamps made from high quality black plastic with sponge rubber disks for firm contact on smooth surfaces. Gooseneck arm is 330 mm (13") in length. Clamping jaws open to approximately 40 mm (1.6"). Miscellaneous: Includes 2 clamps that open 1.6". Gooseneck is made of flexible metal.