杠铃是一种举重及负重训练的器材，由一条铁支及套在两旁的铁饼所组成。

长2.2米（7.22英尺），重20公斤（44.1磅），粗50毫米（1.9685英吋），最高负荷为540公斤（1,200磅），铁支上刻有握手的记号。

长2.05米（6.73英尺），重15公斤（33.07磅），粗25毫米。

A barbell is a piece of exercise equipment used in weight training, bodybuilding, weightlifting and powerlifting, consisting of a long bar with weights attached at each end.

Barbells range in length from 4 feet (1.2 m) to above 8 feet (2.4 m), although bars longer than 2.2 metres (7.2 ft) are used primarily by powerlifters and are not commonplace. The central portion of the bar varies in diameter from 25 millimetres (0.98 in) to 2 inches (51 mm) (e.g. Apollon's Axle), and is often engraved with a knurled crosshatch pattern to help lifters maintain a solid grip. Disc weights (plates) are slid onto the outer portions of the bar to increase or decrease the desired total weight. These weights are often secured with collars to prevent them from sliding off during the exercise, which can result in injuries, or flinging the unevenly loaded barbell through the air.