Fiskars Fingertip Rotary Knife With the Fingertip Rotary Knife from Fiskars you can easily cut the finest round details. You can slide the holder with soft grip around your index finger and hold it like a pen. The small knife cuts where your finger points and turns easily. Specifications: Gender: unisex Material: plastic, steel Knife dimensions: 3 x 5 mm Color: silver Age: from 12 years