There head is rawhide, and handle is vege tanned leather.
1 pound is about 505g,
2 pound is about 890g,
3 pund is about 1315g.
Rawhide mallet has better customer experience than nylon mallet. For nylon one, the more you use, the face of nylon will be broken, until it can't work anymore. But for rawhide mallet, the more you use, the face of mallet will be more fluffy, and you will feel more comfortable.