Silicone Spatula for Stirring Rods
by Fischer Technical

Made of flexible silicone rubber , these little gadgets easily slip onto one end of a glass or plastic stirring rod. The rubber spatula makes scraping precipitates off the bottom of your beaker or flask that much easier, as you have a wider surface area to work with.

It is 30mm (3cm/1.2″)  wide, and features a 5mm wide channel in the center, allowing it to firmly attach to the end of a stir rod.