Size: do not respect the 50x100 part in the 30x75 size/dimension section. the application of the product is very easy and you can easily stick it on your own. our products are made of high quality 1st class material. return conditions: your products must be returned as they arrive, in a boxed and intact packaging. otherwise, the returned returns will not be accepted. more than 100 stocks are offered to be sold at the campaign price. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.