they are a mechanical item

Tool-Free Backing Pad Change: YES - Built in Wrench

HiKOKI Air Spring Drive System – no gas cartridges or harmful fumes

Carrier Size: 300-600 ml

block and stone

SMARTSTRAPS 4m 4 Pack Ratchet Tie Down Straps 145RTD heating tip they are a mechanical itemSmartStraps Ratchet Tie Down Strap Standard Padded grip and thumb release for more comfort and leverage, Strong and durable, easy to use. SmartWeb technology provides webbing that is stronger and more abrasion resistant than standard webbing. Super strong rubber coated steel hooks, For lighter loads often hauled in a pick up truck or on a small trailer & much more secure than rope.