Post-it Super Sticky Notes, 3 in x 3 in, 5 Pads, 2X The Sticking Power, Black, Recyclable (654-5SSSC)

These are amazing. The ones I received are not the thickness of standard post-its, but are almost as thick as cardstock. And they stick SO well, but are easily repositioned as needed. In a pinch, they also make excellent bookmarks. Plenty of opaque gel pens would work to write on them as well. The Uniball Signo, for example, works perfectly.

Great quality and thickness for glitter pens or sharpies. Perfect for my usage.

Thicker than normal post it notes, love these for using with metallic sharpies or gel pens

Really good quality, the paper is nice and thick and they are just the right amount of sticky. They are easy to move around as well. Very happy with this, I wanted a bit of variety from the usual bright coloured post it. I use a white one on these.

Nice, solid composition, deep black color, they take opaque inks well.

These are great for getting to use white/pastel/metallic pens and markers just for the fun of it but they are also less irritating to look at than colorful sticky notes when you want to put them around the house for various reasons. I've used a few to write gift tags for presents as well since they have a nicer look and thickness

These are wonderful and work exactly how I wanted them to! I love how they look on black paper.

Work great with white or metallic pens. Not all pens will show up on the black paper, as you might expect, but the ones that do really pop. Hae used these for motivational quotes on the mirror and around the house and they stick well, even able to move them to a new location without them falling off. Like the multipack so that I can bring some to work and keep some at home.