This is CUSTOMIZED item - you can select number of entries, you can customize color, you can select size, you can also create your own logo or graphic visual. This is BUMPER ball, not a zorb ball. You can not lock yourself inside, it has an open clear-zipped entry all the time. Zorb Ball or name Human hamster ball , it is used as a sport game of rolling on a grass or ground or grassplot inside a giant inflatable ball. Its great for using down local parks, play areas, football pitches and Zorbing Ramp. Zorb Ball also named Inflatable grassplot ball, Inflatable roller ball, land ball, Inflatable human hamster ball, giant inflatable human hamster ball etc. Zorb Ball is very popular between children and adults for sporting and recreation. ATTENTION: this is NOT a Water Zorb - it's not possbie to use it on water because it has one (1) or two (2) open entrances on sides so the person easily go in and go out whenever he/she wants. In such Grass Zorb you can't "lock" a person inside so there is no danger to any individual who rides it or use it in any way. This is a Grass Zorb, specially designed with thicker material so you can play with you Zorb on a thick surface such as grass, ground, football pitch or similar. ************* IMPORTANT *********** This is CUSTOMIZED item. As written before, you can select number of entries, you can also customize color, you can select size (bigger or smaller ball), you can also create your own logo or graphic visual. Every zorb ball is made only ON-DEMAND, they are not shelf items and must be manufactured each time for every new buyer. That is why it's not possible them to be returned.