[
    {
        "code": "flat_rate_envelope",
        "length": "12.5",
        "width": "9.5",
        "height": "1",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "flat_rate_legal_envelope",
        "length": "15",
        "width": "9.5",
        "height": "1",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "flat_rate_padded_envelope",
        "length": "12.5",
        "width": "9.5",
        "height": "1",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "large_envelope_or_flat",
        "length": "15",
        "width": "11.5",
        "height": "1",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "large_flat_rate_box",
        "length": "12.25",
        "width": "12.25",
        "height": "6",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "medium_flat_rate_box",
        "length": "14",
        "width": "12",
        "height": "3.5 ",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "medium_flat_rate_box",
        "length": "11",
        "width": "8.5",
        "height": "5.5",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "small_flat_rate_box",
        "length": "8.625",
        "width": "5.375",
        "height": "1.625",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "regional_rate_box_a",
        "length": "10.125",
        "width": "7.125",
        "height": "5",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "regional_rate_box_a",
        "length": "13",
        "width": "11",
        "height": "2.5",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "regional_rate_box_b",
        "length": "12.25",
        "width": "10.5",
        "height": "5.5",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    },
    {
        "code": "regional_rate_box_b",
        "length": "16.25",
        "width": "14.5",
        "height": "3",
        "weight_max": "",
        "volume_max": "100",
		"carrier_code": "usps"
    }
]