Top two rows of screws are capped so I don’t cut myself while digging, and the durable flexible safety edging means I don’t cut my arms on the garden bed frame while weeding. Extra screws/nuts/washers are included in case you drop some, and the enclosed tool really helps with the screw/nut assembly. I assembled the 17” – 10 in 1 by myself (60 yr old female) on the grass which allowed me to turn the whole thing on its side and upside down to tighten all the screws without the garden bed scratching or sliding around. My garden is being developed in the old swimming pool area which is already cleared of trees and has full sunlight in Ohio. Thank you Vego for a great product!