Plastic Limit Roller
Use:-

Mechanical rolling to determine the plastic limit.

Specification:-
Includes integral top plate handle.
The special adhesive-backed absorbent paper that adds no fiber to soil samples.
50-sheet pad of adhesive paper, and instructions.
Consists of the top and bottom roller plates separated by 3.2mm (1/8in) side rails.
The 4.8mm and 9.5mm (3/16in -3/8in) rigid acrylic device measures.

Plastic Limit Roller