Description from Amazon USA :
Things 4 Strings® accessories, invented by American String Teachers Association honored studio teachers, are teacher designed, tested and approved. Our CelloPhant® bow accessory instantly positions and supports the fingers of the bow hold! The various anatomical features of the elephant, such as toenails and legs, allow the cellist to feel reference points, for consistent bow holds from practice to practice. The size of the CelloPhant® accessory allows an open, relaxedhand, and the circle of the elephant's trunk directs a flexible thumb toward the intersection of the frog and stick, with alternate placements if desired. The bow provides the breath of tone for string players. While cello bow technique varies widely among fine players, all agree a primary focus of the cello bow hold is lack of tension, and a flexible thumb and fingers. Teachers appreciate the flexible-use design of this accessory, allowing for differences of pronation, depending on their own bow technique and student hand size. The accessory is useful for all hand sizes, age 3 through Adult. The accessory also is designed to deliberately add a touch of weight to assist beginning players to achieve a bit more effortless tone -- more tone with which to fall in love! The CelloPhant® accessoryuniquely train the hand to hold the bow correctly and naturally, through muscle memory, thereby freeing the player to learn and enjoy other elements of string playing. CelloPhant® brand bow accessories are protected by US Patents 8,273,973 and D650,830, Australia Patent AU2009241598, Mexico Patente No. 313970, and European Union Design Registration No. 001156830-0003, with additional US and International Patents Pending. The trademarks Things 4 Strings® and CelloPhant® are U.S. Registered Trademarks of Things 4 Strings, LLC.