The reduced thumb ring diameter eliminates the excess gap while still allowing just enough room for comfort and ease, and the new oval shape of the ring handle fits naturally to the contours of the thumb. The edges on the ring handle have also been rounded to create a smooth and soft feel during use. Additionally, the base of the ring handle is slightly flared to ease pressure while dispensing anesthetic. The combination of all these features is unique to the Miltex Petite Syringe and makes it ergonomical by design.