CREATE TABLE table_51688 ("Player" TEXT, "No. ( s ) " TEXT, "Height in Ft." TEXT, "Position" TEXT, "Years for Rockets" TEXT, "School/Club Team/Country" TEXT)

What position does the player who is 6-10 play?
SELECT "Position" FROM table_51688 WHERE "Height in Ft." = '6-10'
SELECT "Position" FROM "table_51688" WHERE "Height in Ft." = '6-10'