Cast Waterproof Cover for Adults, Long Leg

I purchased this on Rakuten, but I ended up buying a different product, so I'm listing it as unopened and unused. This is for adult legs. I have used the arm version of this before, and it was a great help as it prevented my cast from getting wet during showers.
Below is a copy of the product description from when I purchased it.

Waterproof Cast Cover for Adult Legs - Long

Waterproof protection for secure support
Effectively protects bandages and casts in situations where you want to avoid getting wet, such as in the bath or rain.
Eliminates the stress of bathing with a cast or bandage, which previously required putting your leg in a plastic bag, taping it securely, and bathing with great care.

Waterproof
The silicone opening expands and contracts to fit the shape of your leg, creating a tight seal to prevent water from entering.
You can bathe comfortably without worrying about your cast getting wet.

Easy to Put On and Take Off
1. Expand the silicone rubber.
2. Slowly insert your leg, avoiding the injured area.
3. Once your leg is fully inserted, adjust the silicone for a secure fit.
4. Shower and bathe without worry of getting wet.

Reusable: Made of silicone, it can be washed and used multiple times.
It can also be folded compactly for easy storage when not in use.

[Product Details]
Size
Length: Approx. 103cm
Width: Approx. 38cm
Bottom Width: Approx. 50cm
Opening Rim: Diameter Approx. 23cm
Opening Hole: Diameter Approx. 9.3cm (expands to fit legs up to approx. 23cm)
Weight: Approx. 350g
Material: PVC, PP, Silicone (Latex-free)