They have manual locking mechanisms that lock in place when weight is applied to prevent the platform from rolling away
1/4 in Titanium Speed Tip Drill
For Use With Fans
For Use With Combination with Eyewash
Carrying Strap
PBC Linear PSM2530-25 Linear Sleeve Bearing, 25 mm Inside Dia, 25 mm Lg, Frelon Gold, Precision J10037 They have manual locking mechanismsLinear Sleeve Bearing, System of Measurement Metric, Running Clearance Class Precision, Inside Diameter 25 mm, Outside Diameter 25. 05 mm, Overall Length 25 mm, Static Load Capacity 12,865 N, Material Aluminum, Liner Frelon(TM) Gold, Self Lubrication Self Lubricating, Series PSM, Maximum Operating Temperature 400 Degrees F, Minimum Operating Temperature 400 Degrees F, Flange Diameter Not Applicable, Flange Thickness Not Applicable, Bearing Type