OptiLock Non-Adhesive Super Absorbent Wound Dressing, 4" x 4" with 3.3" x 3-1/2" Pad - Replaces 60MSC6444EPZ.Super-absorbent polymer core.  Locks in drainage under compression.  Adjusts absorption to the amount of drainage.  Protects skin from maceration.  Non-adherent wound contact layer.  Indications: pressure ulcers, partial and full-thickness wounds, leg ulcers, lacerations and abrasions and wounds under compression.  Contraindications: third-degree burns, known sensitivity to the product itself or its components; do not use on non-exudating or minimally exudating wounds.  May be left in place for up to 7 days; Dressing change frequency will depend on amount of drainage.