YONGCHENG · SILICONE PRODUCT DEVELOPMENT
Two Small Accessories With Different Jobs
The silicone boot sleeves the lower cup base. The tethered cover fits over the top of the straw, with its retaining ring left around the straw when the cap is lifted. Develop both parts around the cup and straw you actually sell.
Show The Set On A Real Drinkware Setup
A fitted base sleeve and a retained top cover coordinate the lower and upper ends of a reusable tumbler. The cap is removed for drinking and replaced between uses; the tether keeps the cover connected to its retaining ring.
Remove Wash And Refit
- Check Both Fits. Measure the lower cup profile for the boot and the straw outside diameter for the cover and retaining ring.
- Remove For Cleaning. Detach the boot and straw cover from the drinkware. Wash with mild detergent, rinse, and let all parts dry fully.
- Use The Retaining Ring. The ring stays around the straw while the cover is lifted off the upper end. Check that the tether does not obstruct drinking.
Cup Fit And Straw Fit Are Separate Checks
Cup-base diameter, lower profile and sleeve height determine the boot fit. Straw outside diameter and cover depth determine the top-cover fit. This is not a universal-fit accessory set.
| Catalog reference | YC-R10 |
|---|---|
| Material | Silicone |
| Base sleeve reference | Black textured cup-base boot |
| Top cover reference | Cylindrical cover with flexible tether and retaining ring |
| Size specification | Developed from the actual cup base and straw samples; no universal diameter stated. |
| Project options | Base fit, sleeve height, texture, cover geometry, colors, logo and packaging. |
Before You Order
Are the cup and straw included?
No. Companion drinkware is shown only to explain the use of the two accessories.
Will this set fit every tumbler?
No. Send actual cup-base and straw dimensions, or samples, so fit can be checked before production.
Does the cap make the whole cup leakproof?
No. A straw-tip cover does not establish a leakproof claim for the tumbler or its lid.
Build A Range Around Your Market
Send your cup-base dimensions, lower profile, straw outside diameter, desired colors and retail pack requirements.
Factory supply and OEM ODM development from Yongcheng in Dongguan, China. We review the product specification, material selection, sample and packaging before production.
Catalog design references and illustrative application scenes are shown for sourcing discussion. Final construction, performance, colors and supporting documentation follow the approved project sample.
