811 100 Double Headed Cotton Swabs

https://www.mgchemicals.com/products/electronics-maintenance/cleaning-swabs/double-headed-cotton-swab/

A double-headed low lint, extra absorbent U.S.P. pharmaceutical grade purified round cotton-tipped swab. Bonded on a rigid white birch shaft for extra resistance when pressure must be applied. Available in packages of 100.

Features & Benefits
Pharmaceutical grade
Use for cleaning lenses and optical devices
Special construction eliminates migration of chemicals with adhesives for cleaning
No glue used on tip
Small cotton tip
Wood handle is biodegradable