A device for holding a radio frequency identification device, comprising: - a housing (12; 212) having an interior cavity and one open side in communication with the interior cavity; - a base (20; 220) secured at least to the housing (12; 212), the base having a first side wall and a second side wall and at least one slot (30, 32; 490, 492) extending through the base from the first side wall to the second side wall; - a first locking plate (16a; 316a; 416a) configured to fit within the at least one slot (30, 32; 490; 492) from the first side of the base (20; 220), the first locking plate comprising at least a first sheet portion (40a, 42a), at least a first locking member and a first flange located at one edge of the first locking plate (16; 316a; 416a); - a second locking plate (16b; 316b; 416b) configured to fit within the at least one slot (30, 32; 490; 492) from the second side of the base (20; 220), the second locking plate comprising at least a second sheet portion (40b, 42b), a second locking member and a second flange located at one edge of the second locking plate (16b; 316b; 416b); wherein, when the first and second sheet portions (40a, 42a, 40b, 40b) of the first and second locking plates (16a, 16b; 316a, 316b; 416a, 416b) are positioned in the at least one slot (30, 32; 490, 492) the first and second sheet portions overlap, and the first flange extends along at least a portion of the first side wall of the base (20; 220) and the second flange extends along at least a portion of the second side wall of the base (20; 220) whereby the first and second flanges are configured to engage the object to be identified. - a housing (12; 212) having an interior cavity and one open side in communication with the interior cavity; - a base (20; 220) secured at least to the housing (12; 212), the base having a first side wall and a second side wall and at least one slot (30, 32; 490, 492) extending through the base from the first side wall to the second side wall; - a first locking plate (16a; 316a; 416a) configured to fit within the at least one slot (30, 32; 490; 492) from the first side of the base (20; 220), the first locking plate comprising at least a first sheet portion (40a, 42a), at least a first locking member and a first flange located at one edge of the first locking plate (16; 316a; 416a); - a second locking plate (16b; 316b; 416b) configured to fit within the at least one slot (30, 32; 490; 492) from the second side of the base (20; 220), the second locking plate comprising at least a second sheet portion (40b, 42b), a second locking member and a second flange located at one edge of the second locking plate (16b; 316b; 416b); wherein, when the first and second sheet portions (40a, 42a, 40b, 40b) of the first and second locking plates (16a, 16b; 316a, 316b; 416a, 416b) are positioned in the at least one slot (30, 32; 490, 492) the first and second sheet portions overlap, and the first flange extends along at least a portion of the first side wall of the base (20; 220) and the second flange extends along at least a portion of the second side wall of the base (20; 220) whereby the first and second flanges are configured to engage the object to be identified.