Baseline Fold-Up Monofilament, Normal Limit Set (Set of 2: 2.83, 3.61) SenSura Click you can see the rectangle

you can see the rectangle turn into a perfect square shape

Each (10-3341-1) UPC: 714905057754

Small (6055720) EAN: 4042809834697

Yellow - X-Light (26107) UPC: 087453261073

Small (7369650) UPC: 035664027209

Baseline Fold-Up Monofilament, Normal Limit Set (Set of 2: 2.83, 3.61) SenSura Click you can see the rectangleThe Baseline Fold Up Monofilament evaluator is used to measure cutaneous sensory perception threshold. The monofilament test provides a non invasive evaluation with objective and repeatable results. Each monofilament represents a unique amount of force which is marked by force and size. These monofilaments feature an easy to fold nylon filament for protection as well as easy storage and portability. This 2 piece set includes both 2. 83 and 3. 61