Ekunbuy Swivel Eye Snap Hooks, 304 Stainless Steel Heavy Duty 2.7 Inch 3.5 Inch Spring Hooks for Keychains, Bird Feeders, Pet Chains, Dog leashes 2.7"(0#)-4pcs auspowers_batchsix our material of the repeater

our material of the repeater box is more durable and has a longer service life

We could also show both salinity(1ppt=1‰) and Specific Gravity(S

and also doesn’t need a paper-like film to reduce screen readability

the LED lights back is with a clip

Ekunbuy Swivel Eye Snap Hooks, 304 Stainless Steel Heavy Duty 2.7 Inch 3.5 Inch Spring Hooks for Keychains, Bird Feeders, Pet Chains, Dog leashes 2.7"(0#)-4pcs auspowers_batchsix our material of the repeaterEkunbuy Swivel Eye Snap Hooks, 304 Stainless Steel Heavy Duty 2. 7 Inch 3. 5 Inch Spring Hooks for Keychains, Bird Feeders, Pet Chains, Dog leashes Product Features Size & QtyInside the package is four 2 45 64" swivel snap hooks. 2 45 64" hooks are 2. 7" long, 0. 95" wide, 0. 16" thick, 0. 3" max opening, weigh 1. 04oz. WLL: 110 lbs. Nicely MadeIt is made of rustproof 304 SS with a nice slick surface, superior rustproof, durable. Rotate FreelyRotating