Our Love heart Hand Warmer is excellent for keeping hands warm during cold winter mornings and days out walking. Simply place the hand warmer in boiling water until all the crystals have returned to liquid form and use the internal metal snapper to release all the pre-charged heat. Promotional hand warmers are an excellent promotional gift due to their usability and the fact they are easy to store and distribute. Our Love Heart Hand warmer is 90 x 90mm and has a print area of 25 x 15mm which will give you ample room to let your clients know who is keeping their hands warm during this winter season!