Avery Glue Stick Value Pack - 144pk, Disappearing Color, Washable, Non-Toxic, 0.26 oz Permanent Adhesive for School, Office & Crafts (00200) - Perfect for Scrapbooking, DIY Projects & Classroom Use

Works very well. It’s a huge help you have a lot of envelopes to seal. Holiday cards, event invitations- it’s great for both. Easy to use and seals the envelope quite well.The fact that it is purple until it dries helps you see clearly exactly where you’re applying it (envelope flaps aren’t that big and you don’t want to smear it on the letter/card). If you are using it for a large number of envelopes, though, be sure to not use too much - if you apply too thick of a layer it will squish out the sides when you seal the envelope.A lot of people use stickers or tape to seal envelopes instead of using the adhesive on the envelope but stickers don’t adequately seal the envelope for the mail and the tape is very visible- this is a much more attractive solution (and you can still use a sticker if you want).I hate the taste of the adhesive on envelopes. If it’s just one of two it’s ok - 20+ gets pretty bad.Nice tool to have so you don't have to lick envelopes at holiday times.Works well so you don’t have to lick envelopes. Goes on purple and dries clear. Easy to use. Due to paste does not over saturates. Like a glue stick.I usually use Elmers but was woo'd by this price, $18 for under $7....well, I won't be fooled again.1. The glue is CLUMPY; as you're using it, instead of a smooth coverage, it's clumpy and messy2. Since it puts clumps randomly, it makes for bumps in what you're gluing3. Long top pulls off vs. small cap; harder to useI looked for a contact for this; no luck here. I looked online for a customer service email; no luck. I didn't run out of my old glue promptly so I didn't test these; assumed a glue stick was a glue stick but I will not make that mistake again.From the pictures online, I somehow thought these were oval shaped for ease of applying to an envelope. They are simply ordinary round glue sticks from the kids' section, even colored purple like those are. While they work fine, I was previously using the kids' glue sticks as they are cheaper and more widely available. I'll probably just pick up a kids one when these run out.I use these glue sticks for craft projects and find them to be almost as good quality as Elmer's for about one third the price. The Avery glue is a bit "gloppier" and less even as it goes on than the Elmer's is, but works just about as well.My biggest qualm about this product is the design of the glue stick container itself. The "cap" isn't just a twist off cap on the top of the glue stick. The cap is as long as the barrel of the tube itself, and it is cumbersome design that is a bit annoying to deal with if you have to remove and replace the cap often, as you do with many craft projects.All in all, despite the design of the tube, these are a great value and I would recommend them to others.These worked well when first purchased. But over time they shrivel & get gummy and clumpy and a big mess. Had to toss them. I think it's the container- probably not airtight.We have four kids, so we always have some kind of project going on. We use a lot of glue sticks especially during the school year. We've tried every glue stick out there, and I think most of them are exactly the same.What makes this stick stand out is the disappearing color. It goes on blue, but quickly becomes invisible. This helps small kids see where they still need to apply glue, and gives the overall project a nice look when finished. It's also water washable, so it quickly washes out of clothes, carpet, desks and hands. It's also non-toxic, just in case someone tries a taste. They also claim it's acid free to protect photos and scrapbooking, although we don't use it for that purpose.We buy this glue and send it in to teachers to have in the classroom - it's inexpensive and they appreciate it. With free Super Saver Shipping on orders over $25, this is a good deal.