Improved stiles and rigid box section back legs with additional cross braces and K straps for increased strength and stability Unique strengthening beam incorporated into non slip treads and rubber feet ensure no twisting or flimsy arms to snap/break Durability tested to 50;000 cycles with lower bottom tread to prevent bending of the front feet Plastic tool tray to hold tools/equipment while working; lightweight and compact for easy transport and storage Maximum Capacity Load of 150 kg