These necklaces are adjustable in length up to 19" and made with stainless steel chain. The D4's on these necklaces are 2cm wide by 1.5cm long. The dagger charms are 2" long and made of alloy metal. From the top of the D4 to the bottom of the dagger charm is just over 3". 
 
This pendant is called a "Rogue's Dagger" because a dagger does 1d4 piercing damage in D&D, but the blade charm can just as easily be called a sword. 
 
These D4 pendants are the next evolution of what first began as a design experiment. Drilling into the corners of the dice can be dangerous. It takes practice, patience, and and a VERY steady hand. Drilling into THREE corners of the same die therefore, is not an easy or practical design, especially with corners as sharp as those on a D4. The first of the D4 pendants that I created seemed interesting at a glance, but was the new design really worth the trouble? 
I tried on the first pendant, a marble blue D4, and I loved it so much that I couldn't bear to sell it. I kept it for myself, and all the praise I received while wearing it convinced me that the design was worth replicating. Each of these pendants are an act of very careful creation, and I believe they're worth the extra effort. Over time these D4 necklaces evolved into Potions of Healing, with small glass potion vials that hung from the lower point of the D4. When I first ordered these silver dagger charms, I had a much different project in mind for them. Once they arrived however, I realized immediately that they were the perfect next step in my D4 designs. 
 
Handcrafted by the DM of The Dicey Dungeon