Its a little bulky but I use 5" pieces of 2X4 and parachute cord. Drill a hole cross ways about 1" from the top and tie a 5 foot piece of cord through the hole. Rap the cord around the tree and daly it around the block, pulling it down behind the block to the string. If your cord is long enough you can go back around the tree and tie it to the block again. You need about 6 or 8 blocks depending on how hi you set your stand, maybe more. The blocks can be removed easy and limit axcess to your stand. Carry them in a small bag and they can be stashed near your stand when your not using them.
DCM
Good luck on your hunts.