High Quality --- Designed with a target on quality and functionality, made of premium stainless steel, which is sturdy and durable. With proper care is sure to give you years of service. Good Helper --- Our loading pin is designed to be compatible with a wide range of loads, handles, and attachments, including wrist rollers, kettlebells, and pulley systems. No matter how you choose to use it, you will appreciate the high-quality and versatile design. Widely Use --- Place dumbbells in corresponding positions for training grip strength, finger strength and arm strength. You can use it for grip strength exercises or more on your biceps, triceps, pecs, and shoulders. Wonderful Design --- It features an attachment point built on the top of the pin that can easily connect to a strap, carabiner, or rope so it is compatible with a wide range of handles, pulleys, and straps. On Your Way --- The barbell support frame is a good helper for fitness equipment. Use with other fitness equipment to achieve DIY fitness. 3 different sizes for you to choose, meet your different needs. Specification: Condition: 100% brand new Item type:LoadingPin Material:stainless steel Color: As picture shown Optional Size: Approx. 20x220mm, 20x320mm, 48x320mm SizeTube diameter(mm/in)Length(mm/in)20x220mm20/0.8220/8.720x320mm20/0.8320/12.648x320mm48/1.9320/12.6 Package List: 1 x LoadingPin