Solid Rubber Stopper, 30 Pack White, Laboratory Plug, Pipe & Tank Sealing Plug - Tapered Hole Bung, Assorted Sizes 000# - 8#

Perfect for my laboratory go thru a lot bargain good quality

Excellent bungs but would have appreciated two of each size instead of one of each of the large sizes and multiples of small sizes which are really of little use.

These bungs are sturdy and of good quality. Very pleased with them and just what I required. Would buy again when needed.

The stopper works great, I wasn't sure what size to buy so buying multiple sizes was good but I wish I could have had smaller selections and maybe a description as to where they're most commonly used for each size.

Worked. Treat on my fish tank

I needed a couple of stoppers for different applications and wasn't sure, precisely, what sizes I needed. This was a good selection that met my needs. I'm sure folks who buy these things all of the time understand the sizing nomenclature but I would have found it useful to know top and bottom diameters and length. Product is excellent, well made and each stopper labelled with a size code. Delivery was immediate

Brilliant. Solid product, plugs perfectly and no need to worry about breakong them like the glass stoppers. They y let nothing escape and come in many useful sizes. I would say sizing should be given more precisely and perhaps with indication as to which lab flask neck size it fits - stoppers are labeled with simple numbers from 1 to 10, not like flasks eg 29/40 etc which could be a useful improvement. Otherwise perfect. They withstand high temperatures, chemicals, cutting, drilling,falls and other harsh treatment.

Just like they say on the tin. Bought a bag for one little job because I'd no idea what would actually fit but now used them on two other things. Surprisingly useful