The physical company tuff tech rubber dumbbells are a durable dumbbells range designed with clean aesthetics made from polyurethane these dumbbells have a curved handle to ensure a comfortable and strong grip even when lifting your maximum weights the stylish and useful rubber dumbbells will help to protect your gymstudio floor from scratches the raised number feature will help to easily identify the different weights key features of the physical company tuff tech rubber dumbbells knurled