Halder 3688.001 Mallet Block Leveling Block Made of SuperplasticGeneral Information Brand Halder Part Number 3688. 001 Product Type Mallets Packaging Bulk Country of Origin Germany UPC 4030618303329 California Residents Proposition 65 Warning Physical Characteristics Length 200 mm Width 140 mm Height 40 mm Weight 1. 07 kg 2. 35 lb Material Superplastic Diameter 40 mm Details Features Made of wear resistant, durable, and medium hard special plastic. Allows for the distribution of a punctual impact force across a