The York commercial rubber hex dumbbells (2 x 12.5kg) are ideal for building strength and muscle toning. They feature very durable knurled chrome handles that are ergonomically contoured for a perfect fit, as well as rubber covered heads ensuring both comfort and safety. The heads are permanently affixed to a thick (35mm) firm steel shaft to improve the strength of the head/handle joint. The set contains two 12.5kg (27.5lbs) dumbbells that are designed for light commercial usage only.