-TPR Rubber brush features soft TPR bristles that are durable and flexible for effective cleaning. The bristles are made of ThermoPlastic Rubber (TPR). TPR contains plastic and rubber that is reusable and recyclable. TPR is durable, flexible and will last longer than standard nylon-bristle brushes. Extra soft and flexible bristles gently clean delicate glassware, bottles, vases and other hard-to-clean containers. -Soft grip handle with hang-hole for easy storage. -Scraper edge on front is designed for stubborn food.