Discover hassle-free storage with lightweight, extra-strong Attwood Pontoon Blocks. Designed with special features for added stability and convenience, each storage block can hold up to 3, 000 lbs. The bottom has a molded-in texture to ensure maximum grip on concrete or ground surfaces, while the pre-drilled holes make fastening or staking easy. Ergonomic hand-holds make carrying more comfortable. Drainage channels and holes prevent water from pooling against your pontoon.• UV-resistant material for long-lasting durability• Contoured design fits the shape of a pontoon• Easily stored by stacking or hanging• Each block measures 13.5"W x 13.5"L x 9.5"H• Sold as set of four• Made in USA Molded-in texture on bottom for maximum grip on concrete or ground surfaces Pre-drilled holes make fastening or staking easy Drainage channels & holes prevent water pooling against your pontoon | Attwood Marine Pontoon Storage Blocks, Set of 4 Made in USA