Writing Services For College Students Portable&Convenient. The collapsible silicone bowl is a great invention for feeding pets when you go outside or travel. get Design for pets. Feeding outside is no longer a problem. With the bowl, pets own their outdoor tableware by themselves and never eat something threw to the ground, also it releases your hands from feeding. More and more hygeian and clean for you and your pets! Comes with a carabiner and a whistle. You can hook the bowl on your trousers, bags or anywhere you want. The whistle which as watchword for calling pets back or a signal of feeding time depends on your training.