Each 47mm Adams suction cup has a weight loading of 3 pounds (1.36kgs).
This suction cup has a long neck with gripper nubs around it's circumference and can be used for a sign which is 3mm in thickness or for gripping inside a drilled hole of an object. If using a drilled hole, the 4 x 1mm nubs will ease back out to grip the back of the poster (see technical drawing image for dimensions).
Suction cups are ideal for hanging items on glass. Adams superior suction cups will not deteriorate or lose adhesion over time. As exclusive UK distributor, we have the largest range of professional looking suction cups for many uses. We stock a large range of types from suction hooks to suction cups with screw and nut and sizes from mini to heavy duty. Our exceptionally high quality everyday suction cups are available to order online at Suction Cups Direct.