Silicone Multi-Bands These silicone bands are for sealing food bags and bundling tools. They can be used from boiling water to the freezer. Material: Silicone rubber Heat resistance: 150℃ Cold resistance: -20℃ Set includes: 12 bands in 4 colors Brand new, unused. Will be shipped via standard mail in simple packaging. Please purchase only if you understand and agree to these conditions.