Long-tailed Alligator Clips require no assembly, and each one comes with rubber cover. The stand base is made of plastic, but it has good weight to provide stable support for model parts. Very convenient for hold and position small parts for airbrushing, you can paint either a decent sized model or many smaller items at one time. Best gift for miniature model building enthusiasts who need to do lots of airbrushing of models. Package Include: 2 pcs Painting Stand Bases and 40 x Alligator Clips (with rubber cover).