Texture and material construction: Like all Liberator pillows, the Flip Ramp is made from a high density foam. This foam retains its shape and does not cave in, even under the weight of two (or more) bodies. The removable cover is velvish and easy to wash. It doesn't shrink, so fitting it back over the foam is easy. Under the cover is a moisture resistant barrier that protects the foam from lube, massage oils, or bodily fluids. Review Details: I'm one of those who firmly believes everyone needs some Liberator in their life. And if I had to choose just one piece, it'd be the Flip Ramp. It's an incredibly versatile piece. It can be folded into a square. In this position, it can be used as a seat that you can straddle your partner on or you can use it as a support in rear-entry positions. Once open, it resembles a rounded version of the original Liberator ramp or a ski-jump. The bottom is rounded upwards, as opposed to the constant down-slop of the original ramp. This allows you to lay on the Flip Ramp with your hips still supported on the ramp while also being tilted upwards. The original ramp doesn't tilt your hips upward when laying on it. You can also use the higher end of the Flip Ramp for rear entry positions without having the pointed edge the original ramp has. The amount of positions you can use the Flip Ramp for is only limited by your imagination. I suffer from chronic pain issues that can make many sexual positions painful, if not downright impossible. I can only hold my weight on my knees or arms for so long before they give out and I'm left lying on the bed moaning in pain. The Flip Ramp has been the best investment into my sex life I've ever made. My partner and I can get into all of our favorite positions without worrying about my hips, wrists, knees, or back. It takes the pressure off my joints and lets me participate more in the actual act of penetration. Prior to using the Flip Ramp, standard missionary was the only position I could hold for more than 60 seconds. It's comfortable for me to lay on and I've yet to find an uncomfortable position on it. I'd highly recommend it to anyone who experiences joint pain or back pain that interferes with sex. Even if you don't have the misfortune of chronic pain, it can make those tricky angles a lot easier.