Especially for shoulder bag / laptop bag / briefcase / messenger bag / duffel bag / diaper bag / tool bag / guitar bag. Soft, breathable fabric, don't worry about the pad slipping off and hurting your shoulder due to a heavy bag. High-quality aluminum alloy material is more robust and hard, enough to bear the weight of 18 kg. Adjustable shoulder straps for lost or damaged bags. Such as luggage computer bag / notebook bag / outdoor sports bag / travel bag / shoulder bag / diaper bag / tool bag / guitar bag / professional bag. 3.8 cm*133 cm, Made of soft and breathable fabric, so you don't have to worry about the pad slipping off and heavy bags falling on your shoulders. Reduce shoulder pain and fatigue. It feels lighter than it actually is. Prevents the straps from slipping off the shoulders. The universal straps can be attached and adjusted with metal buckles on the sides and are friction-locked to ensure the perfect length according to the user's needs.