I am using these to prop a wisteria I have not put it under heavy load but it is very solidly made from heavy gauge steel so should be strong. They supports are well made and finished in a good power coat paint. There is an outer tube and an inner solid rod which slides up with the V shaped support on top. The 2 parts fit together well and slide smoothly so it is possible to place the support under the branch and slide up the inner rod to the required height and there is a pin which can be pushed through to hold the prop at the right height. The base has a plastic cover which prevents soil getting pushed up inside the tube when it is pushed into the ground and presumably this would also prevent the support sinking into ground when if just placed on the ground. The edges of the support "V" are a little sharp so I added some foam rubber in places where it cut cut/rub the bark. Looks like it will last for many years. Packaging was a little excessive and difficult to unwrap.