A revolutionary concept in the design of camming devices that gives a camming ratio of 2.5:1 and covers the range of up to four other cams. These cams have increased range without sacrificing holding power, walk less than other cam units, eliminate the need for offset cams for flared crack protection and minimise the weight of your rack because you can leave the ground with fewer pieces! Range: 21.1-53.3mm, Weight: 176g