Previous Product Next Product Double Block 13mm $35.65 13mm. Out of stock SKU: BF1003 Category: Essential Fittings Tags: block, double block Description Brand Additional information Description 13mm. Brand Billing Boats Kits Additional information Weight 0.12 lbs Related products Dead Eye 5mm $9.72 Add to cart Single Block 10mm $42.72 Add to cart Hawse Pipe 15mm $7.94 Add to cart