Like the “EL” and “SLXA” Sliding Sleeves, the “EZ” and “SLA” Sliding Sleeves have a housing, inner sleeve, upper and lower sub. However, they do not have a landing nipple profile built into the upper sub, nor do they have a seal bore in either the upper or lower sub. This means that the “EZ” and “SLA” Sliding Sleeves can be used in cases where economy and/or minimum tubing restriction is a primary concern for the operator. They still have all of the basic operational features and reliability of the premium sliding sleeves in the product line, without the capabilities of accommodating the accessory tools.