Shrink bands are 2 mil (200 gauge) - 250 pre cut shrink bands Cost-effective choice for securing caps, lids and closures PVC Cut Shrink Bands - Tamper Message - "Sealed for Your Protection" 250 Units. Easily recognized tamper-evidence. For a smaller cap size please use a Heat Seal Machine to cut band. Don't cut with a knife. Simply slide the plastic band sleeve over the capped bottle/jar and apply heat with a conventional hairdryer or heatgun PVC Shrink Bands - Cut Shrink Bands for Caps - 1" Tamper Message - "Sealed for Your Protection" 250 Units. 45 mm Cap Size. For a smaller cap size please use a Heat Seal Machine to cut band. Don't cut with a knife.