Triple drilled special plastic with 2 x Runpogliders at the beginning of the spiral and spiral end for optimal bending and sliding behaviour Package dimensions (L x W x H): 31.5 x 39.5 x 4.5 cm Package weight: 1.5 kg International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions., Weight: 2.86 Pounds, Manufacturer: NoName