Perfect for small aquariums containing lines, connecting moss and objects, or positioning small plants. The cable ties adapt well to the suction cups. Diameter of the suction cup after suction: 2.8 cm. The length of the cable ties: 10 cm. Made of soft and transparent plastic, the suction cup is easy to attach and remove from the fish tank, fish tank and other glass surfaces. Be careful to keep the suction cups and the glass surface clean. Replace old and worn suction cups in time. Box contents: 20 suction cups and 40 cable ties.