ISPINNER 2pcs 3 Inch Key-Type 304 Stainless Steel Worm Gear Hose Clamps, Adjustable Size Range 60-80mm Clamps for Dryer Vent, Dust Collector and Automotive

I used one of these on my dryer vent. These work great if you have enough clearance in the rear of the dryer instead of the traditional clamps requiring a flat head screwdriver. Just twist until they are tight and your all set. Good quality, easy to use and tighten.

Makes hooking up a dryer hose much easier than older clamp designs.

Saw this clamp on a youtube video, and got it to try since I was redoing my dryer vent hose and pipes with all new materials. The clamp itself is well made, much better than the cheap aluminum ones that come in those dryer vent hose kits.For the vent pipe side, it was easy to attach the clamp. It does take a bunch of twists to fully tighten the clamp. The traditional philips screw clamps are faster to install when you use an electric screw drill. But it is a one-time install, so it's not that bad.For the dryer side, my LG dryer has a short pipe but it is in a recessed area. The clamp can't fit exactly where it should go because the thumb screw sticks out. Unlike the philips screw types.. So I have the clamp mounted at an angle so there is space to turn the thumb screw. It works, but not ideal.If you want better quality clamps, I'd suggest getting one with the regular philips screws. Those are faster to install, and easy enough to finish with a screwdriver.

Key worked great for my needs

Great product for home projects. We used this for securing the dryer vents that were always falling off. It was very easy to install. I would but them again.

This is so much better than compression clamps and no tools required

These ISPINNER 4-inch key-type clamps are fantastic! They fit my dryer vent perfectly, which was exactly what I needed. I used a screwdriver for a little extra leverage during tightening, and it worked like a charm. Honestly, I was expecting something flimsy, but the quality is surprisingly good and they feel really sturdy. Definitely a great purchase and highly recommended!

PERFECT FOR MY CLOTHES DRYER HOSE. It is as advertised and worked very nicely on my dryer vents and enabled me to get rid of the horrid rusty spring steel clamps that came with the vent duct. Nice shiny stainless steel with attractive and well molded wingnuts.BUT:I wouldn't even be writing this review if the spec sheet didn't designate this clamp as suitable for automotive use. For auto air or ram ducting - maybe. But I wouldn't personally use them in that sense.The worm gear is loosely fitted in a very thin housing and the plastic wingnut bottoms out on the tension band when sufficient torque is applied. I have not personally tried this product in an automotive setting because I have enough common sense and experience in that area that I wouldn't even try to use this on a 4" vehicle hose clamping application, other than, as mentioned above, on low pressure non-critical ductwork.When you get into automotive pressure applications above 3" diameter, you are usually talking about commercial uses, such as diesel engines, trucks and tractors. It is my OPINION and my OPINION ONLYthat these 4" hand-tightened clamps just wouldn't cut it because of the narrow width of the band and the weakness of the tightening mechanism. I also believe the plastic wing nuts would break off if one were to torque the band to proper spec necessary to secure a 4" engine hose. In many 4" hose applications it is doubtful that the small size of the wingnuts would allow you to achieve proper torque before the strength of your hand reaches its limits. So, then some Bozo will show you how it's done using a set of plyers which would definitely snap the plastic wings. Then where will you be? You'll be U.S.C.OPINION and Free advice-for what it's worth.