ITEM NAME:High-Pressure Grease Nipple Grease Gun Adapter Hose Kit F5X3 Features: Easily lock on to recessed grease fittings and release with the thumb lever. Well-rounded design. Locks on.....stays on....no leaks. Grease goes in, not on the machine. No more wasted grease mess everywhere. Easy release even on recessed fittings. Fits all standard grease s hooter. Specifications:Material: Steel + Iron + Galvanized Item Size: 110 * 45mm / 4.33 * 1.77in Package Size: 125 * 73 * 29mm / 4.92 * 2.87 * 1.14in Package List: 1 * Grease Coupler.Grease goes in, not on the machine. Easily lock on to recessed grease fittings and release with the thumb lever. Fits all standard grease s hooter. 1 Grease Coupler. Easy release even on recessed fittings.