The Magneton disc from Galaxy Disc Golf was PDGA Approved on 1-28-2017.
"The Magneton putter is a very straight, stable flyer, which has medium glide. We challenge all the other putters with this model. Your Magneton will become a trusted disc for approach shots as well. The E Class plastic has taken a very long time to develop. The TPE used in this blend has a more grippy feel, along with above average durability for this level of plastic. Grip, Durability, Reliability all in one, at a price you will love." - by Galaxy Disc Golf