Gardner Bender 4" Black Heat Shrink Tubing, Pack of 8 Features:

• Provides excellent protection from mechanical abrasion & moisture.
• Flame-retardant polyolefin construction is fluid & solvent resistant.
• Repairs, strengthens, & protects.
• Ideal for general purpose uses including adding perspiration-resistant grips to handles or rope ends.
• Excellent product for repair small electronic cords, or extension cords that are exposing bare wires.
• Dimensions: 4" (L) x .25" (W) x .25" (H).