Unique multi-curved stem rotates for a custom fit. Large handle on curved stem for easy insertion & removal. No roll down design is perfect for workers with dirty hands or wearing gloves. Look for the bright green color as a symbol of Moldex quality. Independently tested to ANSI S3.19-1974. 100% PVC-Free, like all Moldex products & packaging - for a greener alternative. Large soft foam pod for a comfortable, snug seal.