ProMark DD3R mallets feature a round synthetic core with a layer of latex wrapped in thick wool yarn to produce a dark, round sound. The DD3R provides medium-hard articulation and focused tone for great response in the middle register. Rattan handles offer the necessary flexibility while remaining durable enough for demanding performance. The Doug DeMorrow marimba series, designed by respected instrument manufacturer and performer Doug DeMorrow, consists of four mallets, ranging from soft to hard and are designed to achieve a full fundamental sound and an extraordinary feel coming off the bar of the instrument. For over 50 years, ProMark has been one of the world"s leading manufacturers of drumsticks, mallets, and percussion accessories. Owned and operated by D"Addario & Co., the Houston, Texas based ProMark produces products used globally by the greatest drummers and percussionists in the world, including Neal Peart, Phil Collins, Simon Phillips, Ringo Starr, and many more. ProMark - Make Your Mark.