DFP730 mallets are medium yarn-wrapped mallets, ideal for the lower range of the instrument. Length: 17" Head Size: 1.4 x 1.725". Yarn wrap provides a warm tone on marimba while also being budget-friendly. Round, synthetic cores, along with varying layers of latex and yarn wrap provide an ideal variety of hardness between each model. All Promark drumsticks are designed and manufactured in the USA to the most stringent quality controls in the industry. .