LOKI - Arthur Europe Diamond is a non-tacky offensive rubber with very good grip and speed. With its hard sponge and grippy surface, the similarity to European rubbers is striking. Arthur Europe Diamond is made in Germany and the sponge thickness is MAX. Sponge hardness 37.
Speed (LOKI): 12
Spin (LOKI): 11
Precision (LOKI): 12
Reviews: https://revspin.net/rubber/loki-arthur-europe-diamond.html
https://www.tabletennisdaily.com/forum/showthread.php?24487-Loki-N80-amp-Arthur-Europe-Diamond-Rubbers
ITTF-Info: https://equipment.ittf.com/#/equipment_preview/racket_coverings/2485