Carrying is permitted only within the map borders as outlined in the official erub map. One may carry within it house keys, handkerchief, tissues, eyeglasses, talit, siddur, Torah books, food-items, other permitted items needed for Shabbat, push a wheelchair, and wheel a baby carriage. Outdoor activities that violate the spirit of Shabbat remain prohibited, such as certain adult sports activities. One should not ride a bicycle. No prohibited category of melakha on Shabbat besides carrying is permitted by the erub. Mukseh items remain mukseh and are not to be moved.