COSMALL@ 3 Pack 4'' Metal Spring Clamp with rubber coated ends clamp 4 inch for MARKET STALL TARPAULIN clip grip or MULTI Purpose

Really well made, used in our photography studio, very impressed. Would definitely get more when needed. Only small downside is the rubber tips can come off, usually at the wrong time! But a bit of glue or heat solves this problem

Not quite what I wanted but still useful. X