These Adams suction cups have a long neck with gripper nubs around their circumference.
The gripper suction cup can be pushed into a drilled hole of a poster or sign and each of the 4 x 1mm high nubs will ease back out to grip the back of the poster (see technical drawing image for dimensions). Each 47mm Adams suction cup has a weight loading of 3 pounds (1.36kgs).
Suction Cups: Adams worlds best Suction Cups work better for longer. Suction Cups Direct sells everyday suction cups from 22mm to 85mm in diameter. Our range includes suction hooks, suction cups with screw stud and nut, suction cups with mushroom head to suction cups with bulldog clips and suction cups for phone screens. Buy suction cups from www.suctioncupsdirect.co.uk