Amtech S2955 3 Piece 150mm (6") Plastic clamp Set

Amazon

DURABLE WITH A SECURE GRIP: These 150mm (6") general purpose clamps have tough plastic bodies and heavy duty, high tension springs to hold work pieces securely VERSATILE: With a 50mm (2") jaw capacity, they have flexible, self-adjusting and pivoting pads to apply even pressure, Manufacturer: DK Tools

Zoro Tools

DURABLE WITH A SECURE GRIP: These 150mm (6") general purpose clamps have tough plastic bodies and heavy duty, high tension springs to hold work pieces securely. VERSATILE: With a 50mm (2") jaw capacity, they have flexible, self-adjusting and pivoting pads to apply even pressure.

Cazaar

The 6" plastic clamps from Amtech feature a heavy-duty, spring-loaded, high tension grip to hold work pieces tight. They feature self adjusting jaw clamps and flexible pivoting pads to apply even pressure. Approx size 6" with a 50mm jaw capacity.