The Life/form® Pitting Edema Trainer uses life-like simulated tissue to demonstrate Stages 1+ through 4+.Stage 1+Mild pitting, slight indentation (2 mm), no perceptible swelling of areaStage 2+Moderate pitting, indentation (4 mm) subsides rapidlyStage 3+Deep pitting, indentation (6 mm) remains for a short time, area looks swollenStage 4+Very deep pitting, indentation (8 mm) lasts a long time, area is very swollenSkills that can be practiced:Assessment of stages (1+ through 4+)Assessment of depth (2 mm - 8 mm)Assessment of rebound time to baselineChoice of light or medium skin tone