how does it attach to the seat?
1115721
There is a mesh envelope that slips down over the seat. It is reinforced at the top and has holes for the two metal posts that the head rest sits on. The mesh made it capable of fitting multiple sizes of chairs but looked fragile to me so I reinforced it with some heavier fabric. We love this backpack and it has held up to some pretty heavy loads...water bottles, books, coats stuffed in, etc.
1115722
There's a netting pocket that slips over the seat. Your body on the seat holds everything in place. My scooter doesn't have a head rest like the picture shows, but there are holes for one in the netting. I really like this back pack and it does hold a lot of stuff.
983898
On the to of the bar that attaches to the seat portion, where the little lever pushes down.
1396244
Any cloth will give a bit, but it has bottom hooks that can be latched around the seat bottom to keep it in place. Personally, I don't tie the bottom hooks and it still stays in place, pretty much.
1510757
It does attach to the seat post. You may have to purchase a very upright post, depending on the angle for the bike frame.
171588
There are "U" shaped legs that cross each other in an "X" pattern. Then there are 5 screws that attach the legs to the seat, even marked "1" and "2" to show you which goes on first. As you can see from the illustration the legs are adjustable as to length. It couldn't be simpler.
1365928
The backrest attaches to the headrests with adjustable straps and clips that form a loop around each headrest. There are openings for seat belts where the back joins the seat, and a stretchable material on the front corners of the bottom cushion that fit around the car seat corners. The material is pretty heavy and non-slip. I use mine on an Audi Q5 with 2 Cairn Terriers; works great.
289797
They have straps with hooks on the ends that can be attached anywhere under the seat. They come with a plastic center ring with holes around it to accommodate the hooks and create equal pressure on all sides, but you don't have to use it. Hope this helps.
1929286
The strap goes around the back of the chair thus it is attached to the seat in that way
203093
It's attached by a tether. It clips onto the back seat (in an SUV). Not sure how it works in a car.
942096
Pretty much, all you do is snap the back on and slide shoulder straps through and put seat cover on. Then attach to your chair.
789556
It attaches through the same holes as the toilet seat. You remove your toilet seat, place the safety rail on the toilet and then replace the toilet seat with the same large plastic screws. Very easy!
476018
There's a knob on the bar that the seat sits on. You loosen the knob, pull up on the knob and slide the seat up or down to the required length. There are grooves in the bar for the adjusted lengths. When correct length found, tighten knob.
1468318
Metal ends of straps attach with existing screws that fasten seat to wheelchair frame. Remove and reinstall screws passing through holes.
148397
It does not attach. You raise the existing toilet seat and place it on the toilet bowl. It sits on top with a plastic ring that fits inside the bowl to hold it in place.
1148447
Oh... it took a few times, but I eventually realized that the rectangular pieces attached to back get tucked in by seat belt receptacles. This helps hold the cushion to the back of seat (where a person's bottom would go)
1853024
Straps attach to the seat by an open end clip on the straps attaching to the loops on the seat. It is very easy to take on and off. I leave the straps under the seats even when I am not using the Airhawk. The ends of the straps hang out about 1-2 " when not in use. I only use the front strap and front loops on the seat to hold it on. It does not take much to hold the Airhawk in place.
1961250
To the base if your toilet. You must raise the seat to attach. Very simple to attach and release. Hope this was helpful.