It is a amazing alternative to tool bags.The tool bags are made of out date information.Just like tool vests. We have to have high vis. This is on all jobsites .Bags and vests are black. In the sun( yes construction can not be done remotely from home in the shade) black heats up and you have to have a high vis vest over your heat generating bags. Stupid is what stupid do. No body gets this that makes tool bags. We have not used hand nails in I digress maybe 28years ago ?I use a Milwaukee nail guns,saw,multi tool,sawall,planer and a impact on a daily basis.We need 10s,8snails and screws. Can you please list one tool manufacturer that makes tool bags with high vis low heat retention ,places to put 10s and 8s that do not intervene with movement and keep them unbroken and clean? Plus a system like spider that gives you the opportunity to hang up m18 tools securing them from falling 18 stories and killing someone? So of course you need a ergodyne safety system also.If they made their retractable tethers that locked when retracted we would not need the spider black only lever that is on only side that is a total pain in the ass on your left side but it is a godsend compared with earlier systems .When you lost control of a tool you yelled (heads) and of coarse they always looked up. If they can make a left side lever get rid of black ( high vis would be appreciated) and get a screw hole in the holder with a screw provided eliminating the holder coming loose from the belt and falling because only the tool is tethered and when pulling out a tool from the left side and the release is only on one side.Instead of tradesman having to do this themselves Spider is in a class all by themselves and providing the only true solution however if they can figure out what they have so far why not make it a slam dunk with teathers that self lock when retracted in high vis before someone else does and makes their products unnecessary. Spider if you read this YOU CAN DO THIS. If anyone buys this product you need to get a allen wrench to adjust the lever. They do not provide one with it. It is the best product out there but there are cheap knockoffs so only buy the best spider