A device (2, 102) for removably fastening an element to an item, which includes: - a support member (8, 108) provided to support the element and likely to be driven in rotation about an axis (10, 100); and - a locking member comprising an axially extending core (24, 124), the device is characterized in that it includes: - a head (26, 126) extending transversely to a distal end of the core (24, 124), the head (26, 126) being provided with retaining means likely to cooperate with at least one eyelet (62, 162) equipping the item; and - coupling means coupling the support member (8, 108) to the locking member (22, 122), configured to displace the locking member (22, 122), during a rotation of the support member (8, 108), between: • an unlocked position in which the locking member (22, 122) is retracted and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) so as to authorize the passage of the head (26, 126) through the eyelet (62, 162); • a first intermediate position in which the locking member (22, 122) is advanced and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) so as to authorize the passage of the head (26, 126) through the eyelet (62, 162); • a second intermediate position in which the locking member (22, 122) is advanced and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) so as to prohibit the passage of the head (26, 126) through the eyelet (62, 162); and • a locked position in which the locking member (22, 122) is retracted and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) to prohibit the passage of the head (26, 126) through the eyelet (62, 162). - a support member (8, 108) provided to support the element and likely to be driven in rotation about an axis (10, 100); and - a locking member comprising an axially extending core (24, 124), the device is characterized in that it includes: - a head (26, 126) extending transversely to a distal end of the core (24, 124), the head (26, 126) being provided with retaining means likely to cooperate with at least one eyelet (62, 162) equipping the item; and - coupling means coupling the support member (8, 108) to the locking member (22, 122), configured to displace the locking member (22, 122), during a rotation of the support member (8, 108), between: • an unlocked position in which the locking member (22, 122) is retracted and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) so as to authorize the passage of the head (26, 126) through the eyelet (62, 162); • a first intermediate position in which the locking member (22, 122) is advanced and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) so as to authorize the passage of the head (26, 126) through the eyelet (62, 162); • a second intermediate position in which the locking member (22, 122) is advanced and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) so as to prohibit the passage of the head (26, 126) through the eyelet (62, 162); and • a locked position in which the locking member (22, 122) is retracted and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) to prohibit the passage of the head (26, 126) through the eyelet (62, 162). • an unlocked position in which the locking member (22, 122) is retracted and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) so as to authorize the passage of the head (26, 126) through the eyelet (62, 162); • a first intermediate position in which the locking member (22, 122) is advanced and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) so as to authorize the passage of the head (26, 126) through the eyelet (62, 162); • a second intermediate position in which the locking member (22, 122) is advanced and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) so as to prohibit the passage of the head (26, 126) through the eyelet (62, 162); and • a locked position in which the locking member (22, 122) is retracted and the retaining means of the head (26, 126) are arranged relative to the eyelet (62, 162) to prohibit the passage of the head (26, 126) through the eyelet (62, 162).