+3 SPACER BLOCK - MAST CUP -TDM I 88991271 $9.99 In stock Quantity: 1 Add to Bag Product Details UPC: 792176463801 Brand: Hobie Part #: 88991271 Tandem Island Mast Cup Spacer Block Mast cup spacer block Hobie Tandem Island kayak. - Mast cup spacer block Save this product for later Favorite