ForceFlex® Stretchable Strength Glad® Tuff Stuff® Kitchen Tidy feature ForceFlex® Stretchable Strength. ForceFlex® is a unique diamond pattern technology that allows the bag to stretch around objects instead of ripping or tearing. This means you can fill them, stretch them and stuff them with just about anything. These bags contain Eucalyptus Oil for a clean, fresh scent to help control odours. When they're full, the secure drawstring closure makes them easy to tie up and carry out.