34429 - safety knife with hook blade SECUNORM PROFI No. 07156 - MARTOR TÜV-tested knifes, features automatic blade retraction for right handed users. Blade has two sharp edges - only turn over the blade. The eyelet adds a safety feature - pull a strap through it and you can hang up. Measurements (L x W x H): 142 x 16 x 31 mm. Weight: 83.5 g. Cutting depth: 10 mm. Basic material: Aluminium.