Trainingstone Dual 15/30 Degree Slopers
When used with an open hand the Bleaustone sloper pack will really help develop your strength for real life problems. These are not easy to hold on steep boards, but are worth the persevering with.
The fine Bleaustone texture comes into it's own on big sloping holds such as these. They have lots of grip but should not wear your skin out too quickly.