
I can't be certain but the largest size certainly doesn't seem like it holds it's rating. I'm not sure how this unit is measured but I'd say its much weaker than advertised. It's useful.kind of. Don't drop them; they will break and the rivets with get pushed around.

Solar-Powered Auto Darkening Professional Welding Helmet W/Wide Lens & Adjustable Shade - DEKOPRO
38 Review

3 Pack Silver Terylene Eyeglasses Strap Holder String Cord Glasses Accessory Chain For Women Men Lanyard Around Neck
32 Review

FEATOL Back Brace For Lower Back Pain, Back Support Belt For Women & Men, Breathable Lower Back Brace With Lumbar Pad, Lower Back Pain Relief For Herniated Disc, Sciatica, Large Size/ X Large Size (Waist :30''-38.6'')
28 Review

HOPESHINE Arm Cooling Sleeves UPF 50+ UV Protection Cycling Outdoor Sports 3-Pairs
27 Review

Upgraded Kids Safety Ear Muffs In Purple Graffiti - ZOHAN EM030
28 Review

Vanderfields Ear Protection Earmuffs: Noise Cancelling & Passive Reduction For Safety Hearing - Adult Headphones For Shooting, Lawn Mowing, DIY, Construction & Woodworking.
26 Review

Stay Protected Under The Sun: HOPESHINE Arm Cooling Sleeves With UPF 50+ UV Protection For Cycling And Outdoor Sports (3-Pairs)
35 Review

10-Pack Of Stylish And Sustainable Unisex Cotton Face Masks For Repeated Use
39 Review