(33)In order to ensure consistent harmonisation in the area of liquidity risk management by AIFMs of open-ended funds and to facilitate market and supervisory convergence, power should be delegated to the Commission to adopt regulatory technical standards by means of delegated acts pursuant to Article 290 TFEU in accordance with Articles 10 to 14 of Regulation (EU) No 1095/2010 to specify the characteristics of the liquidity management tools set out in Annex V to Directive 2011/61/EU, taking due account of the diversity of investment strategies and of underlying assets of AIFs. Those regulatory technical standards should be adopted on the basis of a draft developed by ESMA and should not restrict the ability of AIFMs to use any appropriate liquidity management tool for all asset classes, jurisdictions and market conditions. In order to ensure a uniform level of investor protection in the Union, ESMA should develop guidelines on the selection and calibration of liquidity management tools by AIFMs. Those guidelines should recognise that the primary responsibility for liquidity risk management remains with AIFMs.