A skill shard is obtained while using common training methods in skills that a player has already reached a maximum level of 99 in. When a player obtains all skill shards that pertain to one of the four expert capes, the shards can be combined into an expert cape. Skill shards are obtained while training a skill you already have level 99 in. The likelihood of getting a shard is influenced by the number of actions, rather than the experience gained from the actions. They are used to make expert skillcapes. These shards can be stored in the Expert skillcape shard bag, which can be stored in your player owned house, toy box (page 6).
Artisan's helm
Combatant's hood
Gatherer's hood
Support hood
Shard bag