Royu RUB2 Surface Utility Box total-tp1650015p They also prevent the trolley

They also prevent the trolley from falling of the beam (TSP Model only)

Powerhouse Electric LED Fluorescent T8 Glass Tube Daylight (Selected Wattage)

while the additional supporting points help guide and stabilize the bit inside the hole

Model Specifications HLAD06031 Material:AluminumSteps 3 stepsDistance between two step 233mmDistance between top step and handle 605mmDistance from ground to top step 629mmTop aluminum step size 260x250x30mmApprox Wt:2 52kgMax Load: 150kgPacked by shrink

00 F6 3/4" 457mm 3

Royu RUB2 Surface Utility Box total-tp1650015p They also prevent the trolleyRoyu RUB1 Utility Box Flame Retardant