In The Burning Crusade it is item level 128 and requires level 70. In Wrath of the Lich King it is item level 219 and requires level 80. In MoP Classic it is item level 128 and requires level 70.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Star-Strider Boots Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Star-Strider Boots suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Star-Strider Boots is part of the transmog set Rift Stalker Armor (Hunter only). The other 11 pieces:
Blizzard numbers items as they are created, so the named items next to ID 29951 (29946 to 29956) were usually added in the same batch as Star-Strider Boots: the same quest line, zone, vendor or reward set.