Ship models accessories are essential when you are decorating or building any ship model from scratch. Likewise, they are essential due to the loss or breakage of a part during the construction process. The double blocks are one of the most demanded accessories for being a fundamental part of the rigging assembly, they serve to guide the threads through these. This is the case of the walnut double block with length 4 mm (18 units) by Artesanía Latina. Give more security to the sails of any miniature naval replica thanks to the double blocks!