Hand Exerciser, XL Black/ X-Firm, Individually Packed, Exercise Illustrations included, Retail Packaged, 24 ea/cs (020138) (US Only) (Part Number Change COMING SOON)Supplied in two shapes - standard and elongated - and five progression levels. Users can complete a variety of movements to strengthen grip, increase dexterity and mobility, and improve fine and gross motor skills while offering the added benefit of hot and cold therapy. Each Exerciser is individually packaged with exercise illustrations.