FOAM MOUNTING BLOCKSIncludes 2 blocks, 2 straps and a storage bag.Block Dimensions: 4” TH X 4” W X 15.8750”Strap Dimensions: 1” X 12’ lashing strapMSRP: $59.00 USD**Available for purchase from your Authorized AKONA DealerPART #: DS-00087K