Contains plastic disks that users guide around the gel spiral. This engaging activity is great for hand-eye coordination, building finger and hand strength, and increased attention span. 20" x 22" /51 x 56 cm. Made of wipe-clean vinyl. Cushions tabletop to protect against injury caused by uncontrolled motor activity. Gel is water-based. WARNING: CHOKING HAZARD - Small parts. Not for children under 3 yrs.