This is the Artesania Spring Clamps 90mm (4) Modelling Tool [27201]

The set of 4 Mini Fastening Pliers 3.54’’ (90 mm) is a fundamental crafts and modeling tool for keeping parts fixed during the drying of adhesive on the building models process, among other actions. With an opening of up to 30 mm, you can have immobilized any type of object so that it does not move while you are manipulating it. Take it to your workshop!