This package of one Replacement Scoring Blade is designed by Tim Holtz for Tonic Studios. This replacement blade coordinates with the Tim Holtz 12.5" Precision Trimmer (sold separately) from Tonic Studios. This spare blade can be cleaned with a damp cloth, but make sure it is completely dry before replacing it. Do not immerse this blade in water. This blade does have a sharp edge, so handle it with care and keep it away from small children. This blade should be stored in a cool, dry place. This blade measures 2.25" in length and roughly 0.75" in height. This blade is easy to replace on the blade track. This package of one Replacement Scoring Blade is designed by Tim Holtz for Tonic Studios. This replacement blade coordinates with the Tim Holtz 12.5" Precision Trimmer (sold separately) from Tonic Studios. This spare blade can be cleaned with a damp cloth, but make sure it is completely dry before replacing it. Do not immerse this blade in water. This blade does have a sharp edge, so handle it with care and keep it away from small children. This blade should be stored in a cool, dry place. This blade measures 2.25" in length and roughly 0.75" in height. This blade is easy to replace on the blade track.